Home / 921,042.40-1,270,951.68-513,102.64

Finding the Fourth Proportional to 921,042.40, 1,270,951.68 and 513,102.64

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Solution

The fourth proportional to 921,042.40, 1,270,951.68 and 513,102.64 is: 708,033.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    921,042.40 : 1,270,951.68 = 513,102.64 : x
  2. Step 2: Convert to fraction form
    921,042.40/1,270,951.68 = 513,102.64/x
  3. Step 3: Cross multiply
    921,042.40x = 1,270,951.68 × 513,102.64
  4. Step 4: Simplify right side
    921,042.40x = 652,128,662,320.44
  5. Step 5: Solve for x
    x = 652,128,662,320.44/921,042.40
  6. Step 6: Final answer
    x = 708,033.27

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.